When the winter winds start to blow, but it's still too nice outside to sit on the trainer, we reach for the Castelli Velocissima DT Bib Tight. Fleecy Thermoflex fabric is luxuriously soft and traps a layer of warm air against our skin to keep us warm throughout our entire ride. A dual-density KISS Air² Donna chamois adds the cushioning we need to push those long miles and gives us full freedom of movement without the bulk. Stretch fabric and ankle zips make getting in and out of these a breeze so that when we're ready to ride, nothing is standing in our way.